Hinge.



G. PETRICH.

HINGE.

APPLICATION FILED AUG.28, 1915.

1,175,081. Patented Mar. 14,1916.

1 1%W% W M Wow wdmyon ample,

GUSTAV PETRIGH, OF WESTFIELD, WISCONSIN.

HINGE.

Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed August 28, 1915. Serial No. 47,768.

To all whom it may concern Be it known that I, GUSTAV PETRIGH, a citizen of the United States, and resident of Vestfield, in the county of Marquette and State of Wisconsin, have invented certain new and useful Improvements in Hinges; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention has for its primary object to provide a hinge attachment, whereby friction is put upon the hinge members to sustain a predetermined load, and thus hold the swinging lid or door in any position relative to the fixed hinge member. For exwhen the hinge is used in connection with a door, the said door can be swung ajar, and friction will hold it in its adjusted position firmly, to prevent it from swingingback and forth, and when the device is used in connection with a lid for a boX or trunk, the lid-can thus be swung upwardly at an angle, and friction can be adjusted to hold said lid at the angle desired.

The attachment embodies a pintle rod which is extended beyond the knuckle joint of a leaf hinge, and said pintle rod carries at its end, a pair of bow spring members having their opposite ends secured to the hinge leaves. The spring members exert friction between the knuckles of the hinges, and the tension of said springs can e adjusted by a. nut in threaded union pintle rod whereby the latter is moved longitudinally to increase or decrease the tension of the spring members. The bow springs are connected to the end of the pintle rod by eyes which are frictionally engaged by means of adjustable nuts.

WVith the above objects in view, the invention consists in certain peculiarities of construction and combination of parts, as set forth hereinafter, with reference to the accompanying drawings, and subsequently claimed.

In the drawings: Figure 1 represents an elevation of a hinge equipped with an attachment embodying the features of my invention, with parts broken away and in section to more clearly illustrate certain structural features, and Fig. 2, a longitudinal sectional view of the same, the section being indicated by line 22 of Fig. 1

Referring by characters to the drawings, 1 represents the base of a clip which is fitted into a counter sunk recess of a dooror strip 9. The clip is provided with ofiset aperwith the tured ears 1. Fitted over the clip base, and secured to the strip 2, is a leaf member 3 having knuckles 4:, a which knuckles are alined with the ear apertures of said clip. A second leaf member is secured to a strip 2', and said leaf member is also provided with a single knuckle a which is fitted between the knuckles of the opposite leaf member. A bushing 5 is loosely fitted through the alined knuckle apertures for the reception of a pintle rod 6, which pintle rod projects through the apertures of the clip ears, and is provided with an extension 6. The lower end of the pintle rod is threaded for the reception of an adjusting nut 7,'which adjusting nut rests upon one of the ear clips as shown. The end of the pintle rod extension, 6 is threaded for the reception of a collar 8 and a clamping nut 8, and between the clamping nuts the eyed ends 9 of bow spring members 10 are fitted. The opposite ends of the bow springs 10 are shaped into eyes for the'reception of screws 10 which screws also constitute an attaching means for the ends of the leaf members 3, 3. The resiliency of the springs is such that their arms tend to move together, and thus the ends of the leaf springs are urged together and the pintle rod isurged downwardly. The frictional resistance formed by said springs thus comes between the sleeves 4 and 4 of the leaves and the pintle sleeve 5, the pintle being held against movement by the nut 7. Under some desired conditions the resilient tendency of the arms 10 would be to move apart to draw the hinge leaves apart, whereby the friction thus imparted would be augmented by the friction due to the weight of the door. In this instance, the tendency of springs would be to pull the pintle rod upwardly and therefore in this exemplification of device the nut 7 would be positioned on the pintle rod at the opposite side of the hinge from which it is shown in the drawing.

From the foregoing description, it will be apparent that the bushing i which surrounds the threaded end of the pintle rod 6 forms a smooth contact surface for the knuckles of the hinge members, and it will also be seen that the tension of the bow spring will be exerted to increase the frictional resistance between the hinge knuckles, and a further frictional resistance is effected by adjusting the clamping nut 8 to firmly grip the eyes 9 of said spring members, be-

and the upper face the friction can be adjusted to sustain the load of the movable member of the hinge,

and this movable member may be a door ar ranged to swing horizontally, or it may be a lid arranged to swing vertically. It will also be manifest that in order to increase the friction between the hinge members, the nut 7 can be turned to cause the pintle rod 6 to move outwardly, whereby its extension 6 will be increasedto exert extra pressure upon the spring bows. It will also be apparent that in some instances, the clip ears may constitute a part of one of the leaf members or may be done away with entirely upon doing away with the bushing 4 without departing from the spirit of my invention.

I claim 1. A hinge comprising leaf members having alined knuckles, a pivot rod in the knuckles and extended at one end therepast, springs connected with the extended end of the rod and with outer ends of the leaf members and means for holding thepivot rod against longitudinal movement in the knuckles.

2. A hinge comprising leaf members having alinecl knuckles, a pivot rod in the knuckles and extended at one end therepast,

Copies of this patent may be-obtained for five cents each, by addressing the 7 Washington, D. 0.

the opposite leaf members, -tion between the inner ends of the bow.

supporting clipears associated with one of A the leaf members, .a pintle rod for the knuckles, mountedin the ear apertures, the pintle rod being provided with an extension projecting beyond one of the clip ears, bow springs having their outer ends secured to a hinged connecsprings and the pintle rod extension, and means for tensioning these springs, including a nut that is engageable withone of the clip ears, and in threaded union with the pintlerod, whereby said pintle rod may be longitudinally shifted.

In testimony that I claim the foregoing I have hereunto set my hand at Westfield, in the county of Marquette and State of isconsin, in the presence of two witnesses.

V GUSTAV PETRIOH.

Witnesses: V

CARL H. SOHAUER, J ULIUS WARNKE.

Commissioner of Patents, 7 

